Tank for dyeing machines



Oct. 9, 1934. G. E. DRUM ET AL 1,976,605

TANK FOR DYEING MACHINES Filed Jan. 28. 1932 5 INVENTOR: 1 George 517mm: "z!

ATTORNEYS.

Patented Got. 9, 1934 1,976,605 I TANK FOR DYEING MACHINES George E. Drum and William Jakheimer,

Philadelphia, 3%., assignors to Smith, Drum & f Company, Philadelphiayla a corporation of Pennsylvania Application January 28,

1932, Serial No. 589,379

5 Claims. (Cl. 8--19) The present invention relates to dyeing or material treating machines using solutions and more particularly to a solution holding tank structure. In the treating of skeins of yarn or material 13 and particularly as regards dyeing it is essential that the dye liquor be not only uniformly mixed but remain so throughout the process of treating or dyeing. The type of machine which suspends hanks of yarn from a pole or other support above 10 a tank of dye solution and spraysor otherwise saturates the yarn so that the dye flows downward over the material and falls back into the tank is particularly susceptible to variation of the dye solution. This is because the solution drops from the lower end of the material and if the material is too far above the level of the tank liquid the falling solution will break up into drops and each drop becomesurrounded by air which is then carried down into the main body of the solution. This air disturbs the uniformity of the dye solution and a recirculation of this air impregnated solution will cause streaking and imperfect dyeing results.

Some of the objects of the present invention are to provide an improved tank for dye or other material treating solutions; to provide a device wherein it is possible to maintain a constant distance between the suspended ends of material and the level of the liquid in the tank; to provide a mechanism for creating a false liquid level where by the fall distance of liquid is constant regardless of the length of suspended hanks; to provide means for adjusting the level of a treating liquid to conform to the material to be treated; and to provide other improvements as will hereinafter appear.

In the accompanying drawing Fig. 1 represents a sectional elevation of the skein support and tank of a circulating dyeing machine embodying one form of the present invention; Fig. 2 represents a plan of the tank and associated parts of the invention; and Fig. 3 represents a section on line 3--3 of Fig. 1. I

Referring to the drawing one form of the present invention is shown as incorporated in a dyeing machine of the type having a tank 10 for dye or other treating liquid 11 and an overhead perforated support 12. The supports 12 suspend skeins of yarn 13 or other material to be treated above the level of the liquid in the tank 10 and with the lower ends of the skeins spaced from the normal level of the liquid. A pump (not shown) together with suitable piping to the support 12 circulates and recirculates the dye liquid to the suspended skeins so that the latter substantially ride in a film of issuingliquid and are covered by it as it flows downward over the skeins to drop back into the body of liquid in the tank. The quantity of liquid in the tank 10 is such as to maintain a substantially constant level therein andthis level bears a definite relation to the length of the suspended skeins. In other words the. distance from the lower ends of the skeins to the liquid level is suchthat the returning liquid leaves the skeins and enters the tank liquid in an unbrokenstream. That this may'take place with'certainty this distance is predetermined for skeins of standard length and remains unchanged regardless of using skeins which are I shorter than standard. With this last length of skeins the distance from the skein ends to the liquid level is so increased that the liquid instead of falling as a returning stream to the tank is broken upinto drops and hence each carries an envelope of air into the tank liquid. The result of this is a deleterious oxidation which makes itself apparent in the product by streaks and nonuniform dyeing.

For the purpose of overcoming the disadvantage above pointed out and in effect transforming the machine into a universal one in so far as variation of skein length is concerned a trough 14 is provided consisting of side hanger arms 15 having upper hook ends 16 for respectively seating upon the side rims 17 of the tank 10. These arms 15 depend into the tank 10 and carry the trough of concave form which serves to provide a supplemental liquid pool 18 which is susceptible of vertical adjustment in order that the distance from the lower ends of the skeins to the liquid level will always be the required minimum to prevent the falling liquid from breaking up into particles before reaching the tank liquid. As here shown the two discharge slots 20 for liquid are provided at opposite parts of the trough by cutting away the material and bending it downward in the form of guide flanges 21 to direct the overflow from the supplemental pool of liquid into the main body of liquid.

Adjustment of the trough 14 is made possible 100 by a slot and bolt construction consisting of slots 22 in the arms 15 and bolts 23 passing through apertured upward side extensions 24 of the trough 14. Thus by lowering the bolts 23 5 the trough 14 can be brought to any desired level 10 with respect tothe suspended material and then clamping the parts by tightening the bolts 23. Instead therefore of the machine being limited to a dyer for skeins of one length only it becomes a v position where the supplemental liquid level there in is spaced from the ends of the skeins-thepr'e-T determined distance for return of the liquid without breaking it up into dropsor'producirig such splashing as will bring about theabove mentioned harmful oxidation. When properly placed the bolts 23 are tightened and the trough 14 remains at the new level until there is a change of material length at which time it is again shiftedto give the correct spacing from the lower end 01 the material. In the foregoing theterm skein is iisedonlybyway-of example to explain one use of the machine and it is to be understood that theinv'ention broadly comprehends the dyeing=of piece :go'ods or-any. other. material. 1

'Wh'ile only-ai's'ingle form 'shown'in which this invention may be embodied, it is to be understood th'a t the .Jinvention isnot limited toany specific construction, :"but might be applied to various' 'fo'rmswi'thout departing-from the spirit of the invention or. the scope of the appended claims.

- Having thus described our invention, werclaim: ==-'1. In a dyei'ng' machiney-the combination of .a

tank for holding a treating liquid. a support for suspending materialabove the liquid insaidtank,

and means-for establishing a different liquid 'level in said tan'k whilemaintaining =the normal level constant, 'whereby loop's of material of 'dilTerent length be suspended from said support with the lower ends thereof spaced the same distance from said liquid.

2. In a dyeing machine, the combination of a tank for holdinga treating liquid, a fixed support for suspending material above the liquid in said tank, said support having perforations to deliver treating liquid to said material, and means for establishing an auxiliary pool of liquid above the level of the main body of liquid in said tank. 3. In a dyeing machine, the combination of a tank for holding a treating liquid, a support for suspending material above the liquid in said tank, means for establishing an auxiliary pool of liquid above the level of the main body of liquid, and means for varying the distance between the two liquid levels.

4'. In a dyeing machine, the combination of a tank for'hol'dingatreating liquid, a support for suspending material above the liquid in said tank, a trough provided with an overflow located in said tank 'bettveenthe level of the liquid and the suspended end or endsof said material, and means for adjusting said trough vertically to maintain a predetermined distance between said material and said trough;

'5'. In a dyeing machine, the combination of a tank for "holding .a treating liquid, asupport for suspending material above the liquid in said tank, hanger arms arranged to engage the sides of said tank and hang within said tank, a trough having a depressed portion :to 'iorm a supplemental body of liquid, means forming ansoverflow from said trough, and "adjustable connections between said trough and said aimswneresysaid trough c'anbe located a predetermined distance from the sus-. pended end-of said material GEORGE E. DRUM. ILLIAM H. JAXHEIMER. 

